export default {
    data: {
        keyMap: {
            OS: 'HarmonyOS',
            Version: '2.0',
        },
    },
    getAppVersion() {
        this.$set('keyMap.Version', '3.0');
        console.info("keyMap.Version = " + this.keyMap.Version); // keyMap.Version = 3.0


        this.$delete('keyMap');
        console.info("keyMap.Version = " + this.keyMap); // log print: keyMap.Version = undefined
    }
}